30 Apr '17, 8pm

Hackaday Prize Entry: High Speed Sampling For The Raspberry Pi

The Raspberry Pi has become a firm favorite in our community for its array of GPIOs and other interfaces, as well as its affordable computing power. Unfortunately though despite those many pins, there is a glaring omission in its interfacing capabilities. It lacks an analogue-to-digital converter, so analog inputs have to rely on an expansion card either on those GPIOs or through the USB port. Most people remain content with simple ADCs such as Microchip’s MCP3008, or perhaps a USB sound card for low frequency moving targets. But not [Kelu124], he’s set his sights on something much faster. The original Pi is reputed to be capable of handling a 10Msamples/s ADC, so he thinks its faster successors should be able to work much faster. To that end, he’s created an ADC pHAT which he thinks should be good for twice that figure . The choice of silicon is a CA3306E, a 6-bit device ...

Full article: http://hackaday.com/2017/04/30/hackaday-prize-entry-high-...

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